package com.example.config;

import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.LinkedHashMap;
import java.util.Map;

@Configuration
public class ShiroConfig {
    //ShiroFillterFactoryBean
    @Bean
    public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("securityManager") DefaultWebSecurityManager defaultWebSecurityManager) {
        ShiroFilterFactoryBean bean = new ShiroFilterFactoryBean();
        //设置安全管理器
        bean.setSecurityManager(defaultWebSecurityManager);
        //增加shiro的内置过滤器
        /*
            anon:.无需认证就可以访问
            authc:必须认证了才能访问
            user:必须拥有记住我功能才能用
            perms:拥有对某个资源的权限才能访问
            role:拥有某个角色权限才能访问
         */
        //拦截
        Map<String, String> filterMap = new LinkedHashMap<>();

        //授权，正常的情况下，没有授权会跳转到未授权页面
        // filterMap.put("/URL链接", "perms[用户名:权限]");
        filterMap.put("/user/add", "perms[user:add]");
        filterMap.put("/user/update", "perms[user:add]");

        filterMap.put("/user/*", "authc");
        bean.setFilterChainDefinitionMap(filterMap);

        //设置登录的请求
        bean.setLoginUrl("/toLogin");

        //设置未授权页面
        bean.setUnauthorizedUrl("/noauth");

        return bean;
    }

    //DafaultWebSecurityManager
    @Bean(name = "securityManager")
    public DefaultWebSecurityManager getDefaultWebSecurityManager(@Qualifier("userRealm") UserRealm userRealm) {
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
        //关联realman对象
        securityManager.setRealm(userRealm);
        return securityManager;
    }

    //创建realman对象，需要自定义类

    @Bean(name = "userRealm")
    public UserRealm userRealm() {
        return new UserRealm();
    }
}
